height YAMAHA WR 250F 2009 Owners Manual

YAMAHA WR 250F 2009 Owners Manual WR 250F 2009 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52323/w960_52323-0.png YAMAHA WR 250F 2009 Owners Manual

Page 26 of 224

YAMAHA WR 250F 2009  Owners Manual 2-1
GENERAL SPECIFICATIONS
SPECIFICATIONS
GENERAL SPECIFICATIONS
Model name:WR250FY (USA, CDN, AUS, NZ)
WR250F (EUROPE, ZA)
Model code number: 5UMN (USA)
5UMP (CDN)
5UMR (EUROPE)
5UMS (AUS, NZ, ZA)
Di

Page 33 of 224

YAMAHA WR 250F 2009  Owners Manual 2-8
MAINTENANCE SPECIFICATIONS
Shifter:Shifter type Cam drum and guide bar----
Guide bar bending limit ----0.05 mm (0.002 
in)
Kickstarter: Type Kick and ratchet type----
Carburetor: USA, CDN, ZA, 
AU

Page 35 of 224

YAMAHA WR 250F 2009  Owners Manual 2-10
MAINTENANCE SPECIFICATIONS
ELECTRICALDrive chain:
Type/manufacturer DID520VM/DAIDO----
Number of links 113 links + joint----
Chain slack 48–58 mm (1.9–2.3 in)----
Chain length (15 links) ----

Page 58 of 224

YAMAHA WR 250F 2009  Owners Manual 3-5
MAINTENANCE INTERVALS FOR COMPETITION USE
CRANKInspect and clean ●●
CARBURETOR Inspect, adjust and clean ●●
AIR INDUCTION SYSTEM Inspect and clean ●● ●●
SPARK PLUG Inspect and clea

Page 73 of 224

YAMAHA WR 250F 2009  Owners Manual 3-20
CHASSIS
ADJUSTING THE FRONT BRAKE
1. Check:• Brake lever position "a"
2. Remove: • Brake lever cover
3. Adjust: • Brake lever position
Brake lever position adjustment 
steps:
a. Loosen the

Page 103 of 224

YAMAHA WR 250F 2009  Owners Manual 5-7
CARBURETOR
HANDLING NOTE
Do not loosen the screw (throttle 
position sensor) "1" except when 
changing the throttle position sen-
sor due to failure because it will 
cause a drop in engine perfor-

Page 104 of 224

YAMAHA WR 250F 2009  Owners Manual 5-8
CARBURETOR
e. If both are fine, adjust the float height by bending the float tab "b" 
on the float.
f. Recheck the float height.
CHECKING THE FLOAT
1. Inspect: •Float "1"Damage →Replace.
CHECK

Page 106 of 224

YAMAHA WR 250F 2009  Owners Manual 5-10
CARBURETOR
16. Install:• Jet needle "1"
•Collar "2"
• Spring "3"
• Needle holder "4"
• Throttle valve plate "5"To throttle valve "6".
17. Install: • Throttle valve assembly "1"
• Sc

Page 174 of 224

YAMAHA WR 250F 2009  Owners Manual 6-13
FRONT BRAKE AND REAR BRAKE
A. Front
B. Rear
INSTALLING THE FRONT BRAKE 
MASTER CYLINDER
1. Install: • Brake master cylinder "1"
• Brake master cylinder bracket "2"
• Bolt (brake master cyli